Tailkinker

Answer: It's a very large galaxy - Vader's hardly going to track down some old hermit living out in the middle of nowhere on a backwards planet based purely on a surname that, for all we know, might be quite a common one, and remember that nobody knows him as 'Obi-wan', only as Ben. The only person that he admits to being a Jedi to is Luke, who's not going to go running to the Empire to turn in a man who was a friend of his fathers. Everyone else seems to regard him as a crazy old hermit, not a Jedi Knight or anything like that. Okay, he cuts loose with his sabre in the Mos Eisley cantina, but (a) he's about to leave the planet anyway and (b) it's not as if he had a lot of choice. By the time that Vader might hear about it, he'll be long gone.

Tailkinker ★

Answer: Just because we don't see him talk to Chewbacca, it doesn't mean that he doesn't off-camera during the trip. The conversations that he has are with either Luke or Han - he could talk to Chewie but, from the storytelling point of view, it would just be extraneous material.

Tailkinker ★

Answer: They are, to all intents and purposes, the same army, just with a twenty-odd year gap. The clones form the Republic Army - as it's now reasonably clear that the Republic becomes the Empire, the stormtroopers that we see in the original films are therefore the same army, just under a slightly different regime. The armour variation seems like a plausible alteration over the time period. The stormtroopers are, however, not clones (not as a rule, anyway) - they're conventionally recruited and trained soldiers, which probably accounts for their lesser effectiveness. But, yeah, to sum up, they're the same army, just twenty-odd years apart.

Tailkinker ★

Answer: Obi-Wan sacrificed himself because he knew he wouldn't make it back to the Falcon. Vader and the Stormtroopers would have seen to that and the disabling of the Tractor Beam would have been discovered at any time. He also knew Luke would never leave without him, so he prepared himself for death, which why he and Yoda disappeared.

Answer: It does seem to be something along those lines, yes. There's obviously some reason why Obi-wan and Yoda simply vanished at the point of death, while none of the Jedi portrayed in the prequel trilogy films have apparently done so - this will hopefully be explained in the remaining film. A theory put forward in the books is that a Jedi at the point of death can choose to attach himself to another nearby Force sensitive, providing them with some of their strength and, as we see, guidance. If this does turn out to be correct, then it seems that Obi-wan realised that he himself would be unable to defeat Vader, but that Luke might be able to. As such, he chose to sacrifice himself to give Luke an extra edge in his adventures ahead.

Tailkinker ★

Answer: Han is still under the impression that he can pay Jabba off, and, as his meeting with Jabba implies, the Hutt is still willing to cut him a little slack, so he's not actually wrong. As such, he needs work - the cantina is one of the best places to find opportunities to get money - as, indeed, he does, by meeting Obi-wan and Luke.

Tailkinker ★